- Bit Number
- not applicable, bit 29 in every
- no contents
- Required Alignment
This field is reserved in all namespaces and every
word, the standard radiotap namespace as well as all vendor
namespaces. It is mutually exclusive with the Vendor Namespace field,
setting both is undefined.
Upon interpreting this field, the interpreter shall reset its presence-bitmap index to 0 and its namespace to the default radiotap namespace, and change to the default radiotap namespace, before it interprets subsequent presence-bitmap words.